/***
* Copyright (c) 2009 Caelum - www.caelum.com.br/opensource
* All rights reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package br.com.caelum.vraptor.core;
import br.com.caelum.vraptor.InterceptionException;
import br.com.caelum.vraptor.controller.ControllerMethod;
/**
* An interceptor handler is a wrapper to either an interceptor instance or a
* interceptor definition. This way, the interceptor stack is capable of pushing
* either already instantiated interceptors or
* on-the-run-to-be-instantiated-interceptors. This gives an interceptor the
* capability to require dependencies which will be provided by other
* interceptors registered later on the interceptor stack (but in a previous position).
*
* @author Guilherme Silveira
*/
public interface InterceptorHandler {
void execute(InterceptorStack stack, ControllerMethod method, Object controllerInstance) throws InterceptionException;
}